My car fails to recognise my iPhone via Bluetooth

How would we know, we don't even know what model car you have, version of Bluetooth it supports, etc. I'd wait to hear back from your car manufacturer.

I have the same probem with the iPhone 3G and the Saab UHP BT. The handsfree system in the Saab was flaky with a SE700i but perfect with the O2 XDA orbit - a rebadged HTC pda phone in the UK.
Now my new iphone is recognised and pairs with the car on bt, but it then loses the connection and the car says that no phone is connected.
I suspect that it is the BT software in the iphone that is to blame and that there is a bug in it. I did think that by now that BT technology was pretty standard and that Apple would have used a tried and trusted BT stack.

I suspect strongly in the rush to get the iPhone out that the nos of BT handsfree devices that they tested the iPhone with was but a small sample of what is out there. It is also no answer to say that it is the car manufacturers fault that BT does not work. If it worked before software 2.0, then it is a software fault of Apple's. It is also my strong belief that any new bit of kit should work with what is out there already - I am not going to spend any more money on getting an "Apple BT headset"!

I do know that there is at least one other in this forum who has the same problem, so it is not an ideosynchratic behaviour by one individual iPhone.

BTW before someone replies - I have reset the phone, turned wifi on and off etc etc.

I do hope that Apple becomes aware of the problem and will get around to fixing it. I do also realise that it may not be on the top of their agenda as there seem to be other pressing problems (Mobileme) and perhaps, we (lucky) Saab owners are in a small minority

I have a similar problem with pairing my iPhone to a 07 Saab 9-3. However my wife's phone connects without a problem and will stay connected even as I drive down the road with the phone in our house!

I 'restored' my phone back to the basic profile and it too paired and stayed connected without a problem.

As soon as I load my backup it will pair for 5-15 seconds and then loses it. I will contact Saab but I suspect this is a phone problem.

Every other phone has paired without any problem and the only solution is to change the SIM over to an old unlocked Nokia.

Have the same problem. 2007 Jeep Cherokee with uConnect.

I phone worked perfectly with the in-stereo UConnect Blue Tooth until I upgraded to 2.0 -- then nothing.

neither Jeep nor UConnect can do anything. They said it is a software issue on Apple's part. You cannot update or patch any UConnect car devices prior to 2008 (because they do not have any hard drives).

so Apple needs to come up with a patch for folks that had Blue Tooth enabled car phones without hard drives.

My iPhone will allow me hear on the Bluetooth through my Volvo XC90; but, I cannot speak without loosing every third word. Does anyone else have this problem? Any thoughts on how to resolve it? Any help would be appreciated! Thanks!